nerc.ac.uk

Geomorphological evidence of large vertebrates interacting with the seafloor at abyssal depths in a region designated for deep-sea mining

Marsh, Leigh; Huvenne, Veerle A. I. ORCID: https://orcid.org/0000-0001-7135-6360; Jones, Daniel O. B. ORCID: https://orcid.org/0000-0001-5218-1649. 2018 Geomorphological evidence of large vertebrates interacting with the seafloor at abyssal depths in a region designated for deep-sea mining. Royal Society Open Science, 5 (8). 180286. https://doi.org/10.1098/rsos.180286

Before downloading, please read NORA policies.
[img] Text
LMarsh_Manuscript_RSOS_revised_100718 DJ no tc or comments.docx

Download (104kB)
[img]
Preview
Text
Gold open access
180286.full.pdf
Available under License Creative Commons Attribution 4.0.

Download (1MB) | Preview

Abstract/Summary

Exploration licences for seafloor mineral deposits have been granted across large areas of the world's oceans, with the abyssal Pacific Ocean being the primary target for polymetallic nodules—a potentially valuable source of minerals. These nodule-bearing areas support a large diversity of deep-sea life and although studies have begun to characterize the benthic fauna within the region, the ecological interactions between large bathypelagic vertebrates of the open ocean and the abyssal seafloor remain largely unknown. Here we report seafloor geomorphological alterations observed by an autonomous underwater vehicle that suggest large vertebrates could have interacted with the seafloor to a maximum depth of 4258 m in the recent geological past. Patterns of disturbance on the seafloor are broadly comparable to those recorded in other regions of the world's oceans attributed to beaked whales. These observations have important implications for baseline ecological assessments and the environmental management of potential future mining activities within this region of the Pacific.

Item Type: Publication - Article
Digital Object Identifier (DOI): https://doi.org/10.1098/rsos.180286
ISSN: 2054-5703
Date made live: 02 Oct 2018 10:38 +0 (UTC)
URI: https://nora.nerc.ac.uk/id/eprint/521079

Actions (login required)

View Item View Item

Document Downloads

Downloads for past 30 days

Downloads per month over past year

More statistics for this item...